476 _ LXix. RUBiACE^. [CccntMum 



spreading at the time of the flower, rather fleshy, soon turning 

 ferruginous-fuscons ; stamens glabrous, 5, inserted on the throat 

 of the corolla, alternating with the lobes ; filaments shorter than 

 the anthers ; anthers sagittate-lanceolate, 2 -celled, dehiscing 

 longitudinally, of a cinnamon colour even in the bud; disk 

 annular, fleshy, glabrous ; ovary 2 -celled, ovules solitary in the 

 cells, pendulous ; style glabrous, filiform, rather fleshy, smooth, 

 exserted, | in. long ; stigma thick, ovoid, calyptriform, green, ^^ 

 in. long, with several longitudinal whitish membranous angles ; 

 fruits drupaceous, pea-shaped, usually didymous, green when 

 unripe, about ^ in. long, arranged in cymes 4 to 5 in. in diameter. 

 Sometimes heterophyllous, with a few cordiform smaller leaves in 

 addition to the ordinary ones. 



GoLUNGO Alto. — In the dense primitive forests of Alto Queta, 

 sparingly and flowering rather rarely ; fl. middle of March 1856. The 

 natives call this (and also C. golungoise Hiern, No. 3153) " Molemba 

 N-gongo " or " Mulangel-Ngombe " or " Muhunga-Hun^-a." No. 3148. 

 In the elevated forests of Alto Queta ; unripe fr. July 1856. No. 3149. 



9. C. hispidumBenth.inHook.NigerFl.p. 409; Hiern, Z.c, p. 140. 



GoLUNGo Alto. — A sarmentose shrub, 4 to 6 ft. 'high ; leaves black- 

 green, shining, membranous, rather rigid : flowers tetramerous ; 

 corolla white outside, soon turning a little pale-yellowish ; lobes of the 

 limb reflexed at the time of full flower, inside of a deep sulphur colour, 

 the whole corolla soon turning red ; throat bearded ; stigma green, 

 mitriform, vertically winged with delicately membranous laminas. 

 By the lower thickets of the mountains of Queta, also near N-delle, 

 not uncommon : fl. end of Dec. 1855, and in March 1856. Sometimes 

 heterophyllous as in Polyspluvria and C. vi/Iraticum. No. 3135. A sub- 

 sarmentose shrub 5 to 7 ft. high ; stem quadrangular, sulcate ; branches 

 opposite, quite patent or even reflexed ; branchlets hirsute with rigid 

 distant ferruginous hairs ; the younger leaves very densely ferruginous- 

 hirsute, the adult ones bright herbaceous-green ; bracts ovate from a 

 broad base, acuminate, hirsute with rigid distant ferruginous hairs ; 

 berries pea-shaped. By thickets along the river Quango at the base 

 of the mountains of Alto Queta ; fr. Aug. 1855. No. 3136. 



C. eongense Hiern, I.e., p. 141. 



PuNGO Andongo. — A robust sarmentose nearly scandent shrub, 

 with pale-yellowish flowers. In thickets by the river Lutete ; fl. 

 18 Oct. 1856. No. 3142. 



Bumbo. — Flowers white. In shady places by the river Bumbo ; fl. 

 Oct. 1859. No. 3140. 



10. C. huillense Hiern, sp. n. 



A hard rigid erect shrub, 2 to 4 ft. high ; branches subterete or 

 roundedly tetragonal, ashy, glabrate ; branchlets opposite, decus- 

 sate, patent, shortly pubescent or glabrescent, sometimes fore- 

 shortened and quasi spine-like ; leaves ovate or oval, obtu.se at the 

 apex, unequal and usually obtuse at the base, thinly coriaceous or 

 firmly submembranous, glabrate or puberulous especially along 

 the midrib and in the axils of the 2 to 4 inconspicuous veins on 

 each side of the midrib beneath, | to 1| in. long by ^ to f in. 

 broad, green on both faces, somewhat fleshy, often concave or 



